Developed by George Raleigh, Cornell University & AAS Winner in 1963. Soft, buttery-textured leaves enclose a crisp, juicy, loose inner head of blanched, sweet-tasting leaves & the most nutritious of all lettuces. Forms a small 6" fan-shaped rosette, good for salads & lettuce wraps. A "cut & come again," so harvest outer leaves along the way. Sun/part shade. Very heat tolerant. Days to maturity: 28 baby, 46-65 full size. LACTUCA sativa 'Buttercrunch'